6813730656 has 36 divisors (see below), whose sum is σ = 19376547372. Its totient is φ = 2271243456.

The previous prime is 6813730633. The next prime is 6813730661. The reversal of 6813730656 is 6560373186.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11829106 + ... + 11829681.

It is an arithmetic number, because the mean of its divisors is an integer number (538237427).

Almost surely, 2^6813730656 is an apocalyptic number.

It is an amenable number.

6813730656 is an abundant number, since it is smaller than the sum of its proper divisors (12562816716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6813730656 is a wasteful number, since it uses less digits than its factorization.

6813730656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23658803 (or 23658792 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 6813730656 is about 82545.3248585285. The cubic root of 6813730656 is about 1895.8107753259.

The spelling of 6813730656 in words is "six billion, eight hundred thirteen million, seven hundred thirty thousand, six hundred fifty-six".